I had a brand new smaller bottle and took it in on the exchange plan. I swear every time I get a new exchange the frickin bottle leaked. So I bought this bottle from a guy on craigslist that has been tested and tagged full of 75/25 mix for $160.00, I hate being in the middle of a project and run out of gas. I will use the smaller one now when I run out until I can re-fill the big one!